Nail-driving implement.



J. ANDERSON.

NAIL DRlVlNG IMPLEMENT.

APPLICATION FILED Nov. 5. 1914.

Patented Aug. 31, 1915.

cnLuMBlA PLANoarzAPH Co.. \v/\SH|NGTON. u. c,

Wmme@ J OHN ANDERSON, OF CHICAGO, ILLINOIS.

`NAIa-DRIVNGr IMPLEMENT.

Specification of Letters Patent.

Patented nog. ai, reis..

IApplication filed November 5, 1914.l Serial 1\To.`870,451.4

plements for driving nails or tacks in placesV which are inaccessible toa hammer. rllhe object ofthe invention is to provide a device of thischaracter which will quickly and efectually perform the drivingoperation and at the same time reliably hold the nail or tack inposition to receive the driving blow, thereby avoiding danger of injuryto Athe lingers of the user.

With the above and other objects in view, the invention consists ofcertain novel features of construction, combination, and arrangement ofvparts as will be hereinafter more fully described and claimed.

In the accompanying drawings: Figure l represents a side elevation of animplement constructed in accordance with this invention, parts beingbroken out for convenience in illustration; Fig. 2 is a longitudinalsection thereof; Fig. 3 is a transverse section taken on the line 8-3 ofFig. l. j

In the embodiment, illustrated, a cylindrical tubular casing l is shownhaving caps 2 and 3 removably mounted on the opposite ends thereof, saidcaps being preferably threaded on said ends.' The cap 2 at the rear endof the casing is apertured forthe passage of a plunger to be describedand the cap 3 at the front end is provided with a tubular neck 4 whichis internally threaded to receive ua smaller tube 5 vwhich forms a guidefor the driving end of the plunger 6. rlhis tube 5 is provided at itsfree end with oppositely disposed slots of the nail gripping jaws 8 and9 to be described. These jaws 8 and 9 are fulcrumed intermediately oftheir ends on said tube 5 and the forward or gripping ends thereof areadapted to pass through the slots 7 in the tube 5 and have their opposedfaces provided with nail receiving grooves 10 as shown clearly in Fig.3. The rear ends of these jaws diverge from the fulcrums thereof outwardand have riveted thereto plat@ .means may be employed for Z for thepassage springs 1l which exert their tensionto hold said ends outwardlyand thereby close the clamping ends of they jaws. (See Fig. 2.) The rearends of thesesprings ll are here shown secured'to the neck 4 of the cap3 by a clamping collar l2 but any other suitable this purpose. Slidablymounted in the casing l and the tubular extension 5 is the plunger Gwhich lis made longer than vthe combined length of the `casing andextension and is provided at its rear end with a handle 13 which ispreferably made ofwood or other similar material, the plunger itselfbeing formed offmetal. Secured to the plunger 6 within the casing 1, isa weight 14 which to impart force to the blow of the plunger and it alsoserves as a stop for engaging a coiled spring 15 mounted on the plungerLin the rear end of the casing and when said plunger is retracted, thisweight 14 engages the inner end of the spring and compresses it betweensaidweight and the cap 2. This spring is designed to impart additionalforce to the blow of the plunger.

In the use of this implement, when it is desired to drive a nail or tackin a place inaccessible to a hammer or otherwise, the jaws 8 and 9 areopened by forcing the inner ends thereof toward each other against thetension of the springs 11 and then placing a nail between said jaws.lWhen the nail is properly placed, the spring pressed ends of the jawsare released and said springs ll exert their tension to force the jaws 8and 9 into gripping engagement with the nail to be driven as shown inFig. 2. The nail is then properly positioned against the article intowhich it isto be driven and the plunger 6 is retracted by exerting anoutward pull on the handle 18 which causes the weight 14 to compress thespring l5 in the casing l and when force is exerted on said handle, theplunger is rapidly driven forward thereby and by the action of theexpanding spring l5 causing the front end of .said plunger to engage thehead of the nail and drive it into the article desired. The forceexerted on the nail by the plunger 6 forces the head thereof throughsaid jaws thereby opening them against the tension of the yprings 1l,said `springs being strong enough to hold the nail to properly positionit and are readily yieldable against pressure exertedl on the innerfaces of the jaws 8 and 9. After the nail vhas been is designed j 2f l1,152,260V

l driven, these springs exert their tension to force the jaws intoclosed position Where they remain Luntil opened again for the in-`sertion ofA another nail in the manner above.

described.

. y I claimk as myinvention: i l

A -naildriving implement comprising av tubular casing having capsremovably mounted on its opposite ends, the cap on that on-tlie 'frontend provided with a for- Wardly extending tubularnecl, a tubularextension removablyniounted in said necl I and having Oppositelydisposed slotsin the ends, he grippingends of said jaws being operablethrough said slots and their other 'endsdiverging, platesprings eachhaving oneend' engaging one of the said diverging ends of the jaws forforcing said jaw ends normally apart and the gripping ends of said jawsinto closed position, a clamping collar engaging the other ends of said,springs and encircling the neck of said cap, a plunger operable in saidcasing and eX- tension and projecting through the aperture in the cap atthe rear end of the implement, said plunger being provided with ahandle, a Weight secured to said plunger intermediately of its ends, anda spring coiled on said plunger between the Weight thereon and j therear end of the casing.

lntestiinony whereof I have hereunto 'set my hand in presence of twosubscribing witnesses. i

JOHN ANDERSON.

Witnesses:

J.' F. lNirrrn,y H. H. LELANDER.

l, i yCopies of this patent may be obtained` for five cents each, byaddressing the Commissioner of Patents, Washington, D. C`.

